1/* $NetBSD: mtio.h,v 1.23 2005/12/26 18:41:36 perry Exp $ */ 2 3/* 4 * Copyright (c) 1982, 1986, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)mtio.h 8.1 (Berkeley) 6/2/93 32 */ 33 34#ifndef _SYS_MTIO_H_ 35#define _SYS_MTIO_H_ 36 37#include <sys/ioccom.h> 38 39/* 40 * Structures and definitions for mag tape io control commands 41 */ 42 43/* structure for MTIOCTOP - mag tape op command */ 44struct mtop { 45 short mt_op; /* operations defined below */ 46 int32_t mt_count; /* how many of them */ 47}; 48 49/* operations */ 50#define MTWEOF 0 /* write an end-of-file record */ 51#define MTFSF 1 /* forward space file */ 52#define MTBSF 2 /* backward space file */ 53#define MTFSR 3 /* forward space record */ 54#define MTBSR 4 /* backward space record */ 55#define MTREW 5 /* rewind */ 56#define MTOFFL 6 /* rewind and put the drive offline */ 57#define MTNOP 7 /* no operation, sets status only */ 58#define MTRETEN 8 /* retension */ 59#define MTERASE 9 /* erase entire tape */ 60#define MTEOM 10 /* forward to end of media */ 61#define MTNBSF 11 /* backward space to beginning of file */ 62#define MTCACHE 12 /* enable controller cache */ 63#define MTNOCACHE 13 /* disable controller cache */ 64#define MTSETBSIZ 14 /* set block size; 0 for variable */ 65#define MTSETDNSTY 15 /* set density code for current mode */ 66#define MTCMPRESS 16 /* set/clear device compression */ 67#define MTEWARN 17 /* set/clear early warning behaviour */ 68 69/* structure for MTIOCGET - mag tape get status command */ 70 71struct mtget { 72 short mt_type; /* type of magtape device */ 73/* the following two registers are grossly device dependent */ 74 short mt_dsreg; /* ``drive status'' register */ 75 short mt_erreg; /* ``error'' register */ 76/* end device-dependent registers */ 77 short mt_resid; /* residual count */ 78/* the following two are not yet implemented by most tape drivers */ 79 int32_t mt_fileno; /* file number of current position */ 80 int32_t mt_blkno; /* block number of current position */ 81/* end not yet implemented */ 82 int32_t mt_blksiz; /* current block size */ 83 int32_t mt_density; /* current density code */ 84 int32_t mt_mblksiz[4]; /* block size for different modes */ 85 int32_t mt_mdensity[4]; /* density codes for different modes */ 86}; 87 88/* 89 * Constants for mt_type byte. These are the same 90 * for controllers compatible with the types listed. 91 */ 92#define MT_ISTS 0x01 /* TS-11 */ 93#define MT_ISHT 0x02 /* TM03 Massbus: TE16, TU45, TU77 */ 94#define MT_ISTM 0x03 /* TM11/TE10 Unibus */ 95#define MT_ISMT 0x04 /* TM78/TU78 Massbus */ 96#define MT_ISUT 0x05 /* SI TU-45 emulation on Unibus */ 97#define MT_ISCPC 0x06 /* SUN */ 98#define MT_ISAR 0x07 /* SUN - Also "GENERIC SCSI" */ 99#define MT_ISTMSCP 0x08 /* DEC TMSCP protocol (TU81, TK50) */ 100#define MT_ISCY 0x09 /* CCI Cipher */ 101#define MT_ISCT 0x0a /* HP 1/4 tape */ 102#define MT_ISFHP 0x0b /* HP 7980 1/2 tape */ 103#define MT_ISEXABYTE 0x0c /* Exabyte */ 104#define MT_ISEXA8200 0x0c /* Exabyte EXB-8200 */ 105#define MT_ISEXA8500 0x0d /* Exabyte EXB-8500 */ 106#define MT_ISVIPER1 0x0e /* Archive Viper-150 */ 107#define MT_ISPYTHON 0x0f /* Archive Python (DAT) */ 108#define MT_ISHPDAT 0x10 /* HP 35450A DAT drive */ 109#define MT_ISWANGTEK 0x11 /* WANGTEK 5150ES */ 110#define MT_ISCALIPER 0x12 /* Caliper CP150 */ 111#define MT_ISWTEK5099 0x13 /* WANGTEK 5099ES */ 112#define MT_ISVIPER2525 0x14 /* Archive Viper 2525 */ 113#define MT_ISMFOUR 0x11 /* M4 Data 1/2 9track drive */ 114#define MT_ISTK50 0x12 /* DEC SCSI TK50 */ 115#define MT_ISMT02 0x13 /* Emulex MT02 SCSI tape controller */ 116 117/* bits defined for the mt_dsreg field */ 118#define MT_DS_RDONLY 0x10 /* tape mounted readonly */ 119#define MT_DS_MOUNTED 0x03 /* tape mounted (for control opens) */ 120 121/* 122 * For the mt_erreg field.....This is supposed to be a *generic* 123 * MT interface, so we cannot overload it with SCSI specific entities, 124 * (like ASC/ASCQ) nor is there enough room to put all the information 125 * in that is desirable. This whole structure should be redone. 126 * 127 * In the interim, this will be considered device-specific. For SCSI, 128 * this will be taken to mean the last Sense Key seen. It is not 129 * guaranteed to always be sensibly associated with any command. 130 */ 131 132/* 133 * The action of a MTIOCGET command clears mt_dsreg, mt_erreg, and mt_resid 134 */ 135 136/* mag tape io control commands */ 137#define MTIOCTOP _IOW('m', 1, struct mtop) /* do a mag tape op */ 138#define MTIOCGET _IOR('m', 2, struct mtget) /* get tape status */ 139#define MTIOCIEOT _IO('m', 3) /* ignore EOT error */ 140#define MTIOCEEOT _IO('m', 4) /* enable EOT error */ 141/* 142 * When more SCSI-3 SSC (streaming device) devices are out there 143 * that support the full 32 byte type 2 structure, we'll have to 144 * rethink these ioctls to support all the entities they haul into 145 * the picture (64 bit blocks, logical file record numbers, etc..). 146 */ 147#define MTIOCRDSPOS _IOR('m', 5, uint32_t) /* get logical blk addr */ 148#define MTIOCRDHPOS _IOR('m', 6, uint32_t) /* get hardware blk addr */ 149#define MTIOCSLOCATE _IOW('m', 5, uint32_t) /* seek to logical blk addr */ 150#define MTIOCHLOCATE _IOW('m', 6, uint32_t) /* seek to hardware blk addr */ 151 152#ifdef _KERNEL 153/* 154 * minor device number 155 */ 156 157#define T_UNIT 003 /* unit selection */ 158#define T_NOREWIND 004 /* no rewind on close */ 159#define T_DENSEL 030 /* density select */ 160#define T_800BPI 000 /* select 800 bpi */ 161#define T_1600BPI 010 /* select 1600 bpi */ 162#define T_6250BPI 020 /* select 6250 bpi */ 163#define T_BADBPI 030 /* undefined selection */ 164#endif /* _KERNEL */ 165 166#endif /* !_SYS_MTIO_H_ */ 167